A severe thunderstorm produced wind gusts up to 77 mph in western Laramie County.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CYS wrote it up.
A severe thunderstorm produced wind gusts up to 77 mph in western Laramie County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before the first event at Jun 3, 3:14 PM MST, 1 hour 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 414 PM MDT MON JUN 3 2013 .SHORT TERM...(TONIGHT THROUGH TUESDAY NIGHT) ISSUED AT 408 PM MDT MON JUN 3 2013 WATER VAPOR SATELLITE IMAGERY SHOWS A POTENT UPPER-LEVEL SHORTWAVE ROTATING EASTWARD INTO THE WESTERN DAKOTAS THIS AFTN. THIS FEATURE HAS DRIVEN AN ASSOCIATED COLD FRONT INTO THE WESTERN NE PANHANDLE TODAY WITH STRONG WEST WINDS DEVELOPING IN ITS WAKE. MIXING HAS BECOME VERY WELL PRONOUNCED WITH LAPS SOUNDINGS EXHIBITING DRY ADIABATIC PROFILES UP TO AROUND 500 MILLIBARS. VERTICAL X-SECTIONS ON BOTH THE GFS AND NAM STILL SHOW WINDS APPROACHING 50 KTS JUST ABOVE THE TOP OF THE MIXED LAYER...AND THIS HAS SHOWN WITH HIGHWAY OBS NEAR ARLINGTON REPORTING WIND GUSTS TO AROUND 55 MPH OVER THE LAST FEW HOURS. LLVL GRADIENTS ARE STILL NOT OPTIMAL FOR CRITERIA GUSTS...BUT CANNOT ENTIRELY RULE OUT A WIND GUST TO 58 MPH THROUGH EARLY EVE ESPECIALLY WITH GAP ENHANCEMENTS. SFC PRESSURE GRADIENT WEAKENS CONSIDERABLY FROM WEST TO EAST AS THE FRONT MOVES ACROSS THE CENTRAL PLAINS...AND AS SUCH WOULD EXPECT WINDS TO DIMINISH. AFTN VISIBLE SATELLITE IMAGERY SHOWS A CUMULUS FIELD TAKING SHAPE ALONG I80 FROM SOUTHEAST WY INTO THE SOUTHERN PANHANDLE. THE BEST LLVL CONVERGENCE IS PRESENT MAINLY EAST OF A SIDNEY TO CHADRON LINE...SO ANY CONVECTIVE THREAT THIS AFTERNOON SHOULD BE QUITE LIMITED ACROSS OUR CWA THIS AFTN AND EVE. NONETHELESS...WILL MAINTAIN SLIGHT CHANCE POPS ACROSS THOSE AREAS AS SOME ECHOS ARE ALREADY SHOWING UP ON AREA RADARS. SPC MESOANALYSIS SHOWS ONLY VERY MODEST INSTABILITY WITH SBCAPES APPROACHING 500 J/KG...THUS LIMITING ANY SEVERE THREAT. THE VERY DRY BOUNDARY LAYER AND INVERTED-V LOOK TO SOUNDINGS SUGGESTS THE MAIN HAZARD FROM ANY THUNDERSTORMS THROUGH EARLY EVE WOULD BE GUSTY OUTFLOW WINDS. HIGH PRESSURE WILL BUILD SOUTH INTO THE NORTHERN HIGH PLAINS ON TUESDAY WITH COOL/MOIST UPSLOPE FLOW DEVELOPING ALONG AND EAST OF THE LARAMIE RANGE. THE MODELS SHOW 700 MILLIBAR TEMPERATURES SOME 6 DEG C COOLER THAN TODAY...WHICH COMBINED WITH WIDESPREAD LLVL CUMULUS SHOULD LIMIT AFTN HIGHS TO THE UPPER 60S AND LOWER 70S. UPSLOPE DRIVEN SHOWERS AND TSTMS SHOULD SLOWLY INCREASE IN COVERAGE DURING THE EARLY AFTN...BUT WILL SPREAD ONTO THE PLAINS OF SOUTHEAST WY AND WESTERN NE DURING THE EVENING AND OVERNIGHT AS MOISTURE INCREASES AHEAD OF ANOTHER WEAK SHORTWAVE. GIVEN THE COOLER AIRMASS...INSTABILITY WILL BE WEAK AT BEST SO WOULD NOT EXPECT ANYTHING TO BE PARTICULARLY STRONG. .LONG TERM...(WEDNESDAY THROUGH SUNDAY) ISSUED AT 408 PM MDT MON JUN 3 2013 WEAK SHORTWAVE WILL BE MOVING ACROSS THE REGION ON WED. WEAK CONVERGENCE ALONG THE SOUTHERN LARAMIE RANGE COULD TRIGGER A FEW SHOWERS...HOWEVER INSTABILITY AND MOISTURE IS QUITE LIMITED. ANOTHER COOL DAY WITH 700MB TEMPS AROUND 3-5C. WEAK UPSLOPE OVER THE PLAINS CONTINUES ON THURSDAY BUT HEIGHTS AND LLVL THICKNESSES WILL RISE...RESULTING IN WARMER TEMPS. A STRONGER SHORTWAVE MOVES TO THE NORTH OF THE CWA ON FRIDAY AND MAY CAUSE THE BEST CHANCE OF WIDESPREAD SHOWERS AND TSTMS. THE GFS HAS THE SFC TROUGH ALONG THE WY-NE BORDER IN THE AFTN WITH 1250-1500 J/KG OF CAPE ACROSS MOST OF THE PANHANDLE. WITH GOOD DEEP LAYER SHEAR ALSO A FEW SEVERE STORMS WOULD BE POSSIBLE SHOULD THIS VERIFY. THE REMAINDER OF THE EXTENDED WILL FEATURE NORTHWESTERLY FLOW ALOFT AND SEASONAL TO SLIGHTLY ABOVE NORMAL TEMPS. THE LLVL MOISTURE OVER THE PLAINS SHOULD RESULT IN WEAK CAPE (500-750 J/KG) BOTH SATURDAY AND SUNDAY AFTN FOR SOME ISOLATED THUNDER. && .AVIATION...(FOR THE 18Z TAFS THROUGH 18Z TUESDAY MORNING) ISSUED AT 1143 AM MDT MON JUN 3 2013 VFR CONDITIONS SHOULD PREVAIL THROUGH THE PERIOD. ISOLATED AFTN SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE EAST OF THE LARAMIE RANGE. THESE STORMS ARE NOT LIKELY TO BE SEVERE...BUT COULD PRODUCE BRIEF AND ERRATIC WIND GUSTS TO 50 MPH. OTHERWISE... WESTERLY WINDS WILL GUST BETWEEN 30 AND 40 MPH OVER SOUTH CENTRAL AND SOUTHEAST WYOMING BEFORE DIMINISHING DURING THE LATE EVENING AND OVERNIGHT. && .FIRE WEATHER... ISSUED AT 408 PM MDT MON JUN 3 2013 STRONG WEST WINDS WILL CONTINUE ACROSS THE AREA THROUGH EARLY EVENING AS A COLD FRONT MOVES EAST INTO WESTERN NE. LATE AFTN RELATIVE HUMIDITY VALUES WILL BE AS LOW AS 10 PERCENT OVER SE WY...CREATING ELEVATED FIRE WEATHER CONDITIONS. SHOWERS AND THUNDERSTORMS WITH GUSTY AND ERRATIC WINDS WILL BE POSSIBLE THROUGH THIS EVENING. TUESDAY WILL BE COOLER WITH MOIST NORTHEASTERLY FLOW. THE BEST CHANCE FOR SHOWERS AND ISOLATED THUNDERSTORMS WILL BE TUESDAY NIGHT INTO WEDNESDAY ALONG AND EAST OF THE LARAMIE RANGE. DRY CONDITIONS SHOULD PREVAIL ELSEWHERE. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && SHORT TERM...HAMMER LONG TERM...FINCH AVIATION...HAMMER FIRE WEATHER...HAMMER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 354 PM MDT MON JUN 3 2013 WYZ101>119-042200- CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 354 PM MDT MON JUN 3 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING... SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT WEST WINDS MAY GUST AS HIGH AS 55 MPH THROUGH EARLY EVENING AS A STRONG COLD FRONT MOVES ACROSS THE AREA. THE WIND PRONE AREAS OF SOUTHEAST WYOMING WILL LIKELY SEE THE STRONGEST WINDS...INCLUDING THE INTERSTATE 80 SUMMIT AS WELL AS THE ARLINGTON AND BORDEAUX AREAS. ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. THE MAIN THREAT FROM THESE STORMS WILL BE GUSTY WINDS TO 50 MPH. SEVERE THUNDERSTORMS ARE NOT EXPECTED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE OF THUNDERSTORMS ACROSS AREAS ALONG AND EAST OF THE LARAMIE RANGE IN SOUTHEAST WYOMING ON TUESDAY AFTERNOON INTO TUESDAY EVENING. OTHERWISE...THERE IS A BETTER CHANCE OF THUNDERSTORMS THURSDAY THROUGH SATURDAY. THE PROBABILITY OF SEVERE THUNDERSTORMS IS LOW THROUGH LATE THIS WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE NEZ002-003-019>021-054-055-095-096-042200- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- 354 PM MDT MON JUN 3 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE OVER THE WESTERN NEBRASKA PANHANDLE THIS AFTERNOON. THE PRIMARY THREAT FROM THIS ACTIVITY WILL BE GUSTY WINDS TO 50 MPH. SEVERE THUNDERSTORMS ARE NOT EXPECTED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE FOR LATE DAY THUNDERSTORMS TUESDAY THROUGH FRIDAY. THE PROBABILITY OF SEVERE THUNDERSTORMS IS LOW THROUGH LATE THIS WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 105 PM MDT MON JUN 3 2013 WYZ110-032300- NORTH SNOWY RANGE FOOTHILLS- INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN 105 PM MDT MON JUN 3 2013 ...STRONG WINDS ALONG INTERSTATE 80 NEAR ARLINGTON... WEST TO SOUTHWEST WINDS WILL CONTINUE TO GUST AS HIGH AS 55 MPH ALONG INTERSTATE 80 NEAR ARLINGTON THROUGH EARLY EVENING. THOSE TRAVELING THROUGH THIS AREA SHOULD USE CAUTION...ESPECIALLY IF DRIVING HIGH PROFILE VEHICLES OR LIGHT TRAILERS. THE WINDS ARE EXPECTED TO DIMINISH THIS EVENING. CLH
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 503 PM MDT MON JUN 3 2013 WYZ110-040115- NORTH SNOWY RANGE FOOTHILLS- INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN 503 PM MDT MON JUN 3 2013 ...STRONG WINDS ALONG INTERSTATE 80 NEAR ARLINGTON... WEST WINDS WILL CONTINUE TO GUST AS HIGH AS 55 MPH ALONG INTERSTATE 80 NEAR ARLINGTON THROUGH EARLY EVENING. IN PARTICULAR...THE STRONGEST WINDS WILL BE NEAR HALLECK RIDGE AT MILE MARKER 252. THOSE PLANNING ON TRAVELING THROUGH THIS AREA SHOULD USE CAUTION OR EVEN DELAY TRAVEL...ESPECIALLY IF DRIVING HIGH PROFILE VEHICLES OR LIGHT TRAILERS. THE WINDS ARE EXPECTED TO DIMINISH THIS EVENING. RJM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 517 PM MDT MON JUN 3 2013 WYZ116>118-040000- CENTRAL LARAMIE COUNTY WY-SOUTH LARAMIE RANGE WY-SOUTH LARAMIE RANGE FOOTHILLS WY- 517 PM MDT MON JUN 3 2013 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL LARAMIE COUNTY UNTIL 600 PM MDT... AT 515 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM GRANITE SPRINGS RESERVOIR TO 7 MILES SOUTH OF CRYSTAL LAKE CAMPGROUND...AND MOVING EAST AT 45 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 55 MPH ARE EXPECTED WITH THESE STORMS. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE... CHEYENNE... FEDERAL... WARREN AF BASE... FRONTIER PARK... NORTH CHEYENNE... SOUTH GREELEY HIGHWAY... FOX FARM-COLLEGE... THIS INCLUDES INTERSTATE 80 IN WYOMING BETWEEN MILE MARKERS 338 AND 376. THIS INCLUDES INTERSTATE 25 IN WYOMING BETWEEN MILE MARKERS 5 AND 9. && LAT...LON 4141 10459 4108 10453 4103 10525 4124 10528 TIME...MOT...LOC 2317Z 259DEG 38KT 4122 10517 4106 10515 MAZUR
The Cheyenne radar (KCYS), 27 km away, was scanning. The volume nearest the first event began at 23:28 UTC.
5 thunderstorm wind. Local standard time, as filed.
A wind gust of 77 mph was measured 12 miles south-southeast of Horse Creek.
A wind gust of 66 mph was reported at FE Warren AFB.
A wind gust of 76 mph was reported at FE Warren AFB.
A wind gust of 61 mph was reported by weather officials at FE Warren AFB.
The wind sensor at the Cheyenne Airport measured a peak wind gust of 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2013Every state in 2013This day in weather historyWarnings in Wyoming, June 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 444212, 444213, 444214, 444218, 444220.